The Pro Series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro Series are also available with hex and 12-point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings.

More From This Category

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SB2-2 3/8 in. Block w/ 260 ksi Custom Age 625+, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SB2-2 3/8 in. Block w/ 260 ksi Custom Age 625+, Kit

$1,883.31

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Dart 13 Heads, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Dart 13 Heads, Kit

$634.09

ARP Cylinder Head Stud, Pro-Series, Hex Head, For Chevrolet SB, 18 Standard Port, Kit

ARP Cylinder Head Stud, Pro-Series, Hex Head, For Chevrolet SB, 18 Standard Port, Kit

$433.89

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Rodeck Aluminium Block, GB2300 Heads, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Rodeck Aluminium Block, GB2300 Heads, Kit

$995.90